Gem News International Gems & Gemology, Volume 46, No. 1

Spring 2010 Gem News International

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2010 Tucson
Colored Stones and Organic Materials
            Update on Ametrine from the Yuruty Mine, Bolivia
            Andradite from China
            Barite from Brazil
            Hanksite as a Gem Material
            Lepidolite Beads from Mozambique
            “Soufflé” Freshwater Cultured Pearls
            “Churrasco Quartz” with Tourmaline and Chamosite Inclusions from Brazil
            Cat’s-Eye Rhodonite
GNI Regular Features
Diamonds
            A Large Hydrogen-Rich Diamond with a Cuboid Phantom Cloud
Colored Stones and Organic Materials
            Diopside from Ihosy, Madagascar
            Garnet and Zircon from the Solomon Islands
            Tsavorite Mining at Namalulu, Northern Tanzania
Synthetics and Simulants
            Treated CVD-Grown Pink Synthetic Diamond Melee
Treatments
            A Be-Diffused Sapphire with Interesting Zoning Patterns
            Dyed Conch Shell Beads
Miscellaneous
            Unusual Gemstone Tapestry
 
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DATA DEPOSITORY

Electron Microprobe Data 
Submitted by Simona Mazziotti Tagliani
May 5, 2010